<!Doctype html>
<html>

<head>
    <meta charset="utf-8">
    <title>我的菜鸟教程</title>
</head>

<body>
    <h1>hello world</h1>
    <p>Django测试</p>
    {% block mainbody %}
    <p>original</p>
    {% endblock %}
</body>

</html>